*{
    margin: 0;
    padding: 0;
}
.daohang{
    width: 100%;
    height: 35px;
    background-color: gainsboro;
}
.menu{
    width: 80%;
    height: 100%;
    margin: 0 auto;
}

.menu_left{
    width: 200px;
    height: 35px;
    float: left;
}
.menu_h3{
    color: pink;
    line-height: 35px;
    text-align: center;
}


.menu_right {
    width: 600px;
    height: 35px;
    float: right;
}
.menu_right h4{
    float: left;
    line-height: 35px;
    text-align: center;
    margin-left: 25px;
}

.list{
    width: 395px;
    height: 35px;
    float: left;
    list-style: none;
    margin-left: 25px;
    line-height: 35px;
    text-align: center;
}

.item{
    width: 40px;
    float: left;
    margin-left: 15px;
    margin-right: 10px;
}
.item:hover{
    background-color: pink;
    color: white;
}